{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8513104","patent":{"patent_number":"US-8513104","title":"Methods of forming a floating junction on a solar cell with a particle masking layer","assignee":null,"inventors":[],"filing_date":"2011-06-29T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":11,"abstract":"A method of forming a floating junction on a substrate is disclosed. The method includes providing the substrate doped with boron atoms, the substrate comprising a front surface and a rear surface. The method also includes depositing a set of masking particles on the rear surface in a set of patterns; and heating the substrate in a baking ambient to a first temperature and for a first time period in order to create a particle masking layer. The method further includes exposing the substrate to a phosphorous deposition ambient at a second temperature and for a second time period, wherein a front surface PSG layer, a front surface phosphorous diffusion, a rear surface PSG layer, and a rear surface phosphorous diffusion are formed, and wherein a first phosphorous dopant surface concentration in the substrate proximate to the set of patterns is less than a second dopant surface concentration in the substrate not proximate to the set of patterns. The method also includes exposing the substrate to a set of etchants for a third time period, wherein the front surface PSG layer and the rear surface PSG layer are substantially removed; depositing a front surface SiNx layer and a rear surface SiNx layer; and forming a rear metal contact on the rear surface through the rear surface SiNx layer proximate to the set of patterns."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods of forming a floating junction on a solar cell with a particle masking layer","description":"A method of forming a floating junction on a substrate is disclosed. The method includes providing the substrate doped with boron atoms, the substrate comprising a front surface and a rear surface. Th","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8513104","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8513104","citation_suggestion":"Patentable. \"Methods of forming a floating junction on a solar cell with a particle masking layer\" (US-8513104). https://patentable.app/patents/US-8513104","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8513104","json":"https://patentable.app/api/llm-context/US-8513104","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:04:50.859Z"}